flintlime brick vs calcium-silicate brick

flintlime brick and calcium-silicate brick both are nouns.

Word	Noun	Adjective	Verb	Adverb
flintlime brick	Yes	No	No	No
calcium-silicate brick	Yes	No	No	No

As nouns, flintlime brick and calcium-silicate brick are synonyms defined as:

flintlime brick and calcium-silicate brick: brick made with sand and slaked lime rather than with clay; usually a light gray or off-white color.

Other synonyms of flintlime brick include sand-lime brick, sandlime brick.

flintlime brick (noun)	calcium-silicate brick (noun)
brick made with sand and slaked lime rather than with clay; usually a light gray or off-white color.	brick made with sand and slaked lime rather than with clay; usually a light gray or off-white color.